12928780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{22291}}^1$

素因数の和:22329

約数の個数: 24

約数和(自身を含む): 28087920

約数和(自身を除く): 15159140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 22291, 44582, 89164, 111455, 222910, 445820, 646439, 1292878, 2585756, 3232195, 6464390, 12928780]

約数ペア:

[(1, 12928780), (2, 6464390), (4, 3232195), (5, 2585756), (10, 1292878), (20, 646439), (29, 445820), (58, 222910), (116, 111455), (145, 89164), (290, 44582), (580, 22291)]